Stellar Motions Could Drive Rapid Galactic Settlement, Reframing the Fermi Paradox

To the point

Researchers led by Jonathan Carroll-Nellenback, with Jason Wright, Adam Frank, and Caleb Scharf, argue that stars drifting through the Milky Way can spread life quickly enough to settle large parts of the galaxy before propulsion dominates, so the lack of interstellar visitors today does not prove there is no life or civilizations elsewhere and should make us more optimistic in SETI searches.

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Galaxy Simulations Offer a New Solution to the Fermi Paradox | Quanta Magazine
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Astronomers claim in a new paper that star motions should make it easy for civilizations to spread across the galaxy, but still we might find ourselves alone.